Hypodermic unit



April 27, A1954 s FOX 2,676,591

HYPODERMIC UNIT Filed March 27, 1951 2 Sheets-Sheet 1 NVENTOR. Szauy/ey l. rf

April 27, 1954 s, FOX 2,676,591

HYPODERMI'C UNIT Filed March 27, 1951' 2 Sheets-,Sheet 2 23 INVENToR.

@fan/gy /7'70 y Y lay/VW Patented Apr. 27, 1954 UNITED STATES PATENT OFFICE HYPODERMIO UNIT Stanley L. Fox; Los Angeles, Calif.; Dorothy Brown Fox, executrixv of. said Stanley I). Fox

deceased Application March 27, 1951, SerialzNo. 217,751

17 Claims. (Cl. 12S-216) Thisinvention has to do with a fluid handlingdevice or hypodermic unit andy it is more specifically concerned With a device` usefu1 for receiving fluid or as a hypoderrnic syringe or fluid applicator. It is a general object of the present invention to provide a fluid handling device that can be readily and. economically produced in a sterile condition and suitable for convenient handling and transportation, and which is such that it canv be easily, quickhnand advantageously used when desired.

Hypodermic needles and. iiuid handling devices as ordinarily provided involve various joints and connections` and present problems of sterilization, andfthe loading and handling of thefluids is generally somewhat dimcult and in many instances hazardous.

It isa general object ofthis invention to provide a simple, practical, inexpensive device, in fact, a device that is such that it can be disposed of after asingleuse Without appreciableV loss, which device can be-manufaetured, loaded, and handled economically and issuchthat it is always immediately available for use and does. not require the exercise of any unusual skill or care for its proper handling or use.

It is a further object of this invention to Dro.-

vide a device of thek general character referred` to which involves, .essentially twomajor elements,. namely, an applicator or fluid passing device that` may be advantageously formed of metal and which is essentially a needle, and.. aliquid car-- rier Which can be advantageously formed ci socalled plastic materials such as polyethylenes, polyvinyl chlorides,A or the like, which is'soft or. iiexible and is such that it normally completely encases or encloses theapplicator, maintaining it' sealed and in a sterile condition while at' the same timev carrying a, suitable charge or supply of uid to be administered sothat suchcharge isseparate from or out of contact with the applicator and is only in Contact therewith in the Iii),

fifa' or otherwise formed-cell. of the liquid carrier, and sealed therein, or if desired such fluid can be pro-v vided in a separateV carrier or envelope applied toY the cell of the liquid. carrier as an insert.

The structure that. I have provided, thoughuseful both tovreceive and to apply fluid, Will be described specifically as an applicator. However,

I wish it understood that I contemplate using itY also as a iluid or sample taking device.

The structure provided by the present invention is characterized by two units,l one an applicator and the other a fluid carrier. The applicator is preferably formed of a simple, straight, elongate tubular part sharp at both ends and with an outer end portion in the form of a needle and. arear endportion in the form of a shank. An anchoring element or'enlargement be provided on the elongate tubualr element at about the point,v where the needle and shank portions come together. The fluid carrier involves a collapsible cell with an elongate tubular body closed at its outer end provided with an inner'end wall that closes it at its-inner end. The inner end Wall receives the shank of the fluid. applicator anda boss be provided at the inner side of the end Wall to project a substantial distance intothe cell. The shank extends a substantial distance into the boss but does not project completely through it. The unit forming the fluid carrier has a head spaced forward of theinner. end of the cell and anchored on the applicator; A thin Walled collapsible neck connects and is integral with the inner wall of the celland the head, and a cap forms a part ofY the carrier unit and is engaged over the needle portion of theapplicatonbeing integrally joined Withtheheadby a coupling part that is thin and which forms aabreakjoint. A core is carried by the'rcap and. extends completely through the applicator from the pointed end of the needle portion to the pointed end of the shank portion. When the1 cap isremoved the-core is carried with it'andis thus Withdrawn from the opening of the applicator.

it is normally out of` contact with the applicator and'vvith any part. or' parts other than the cellof the structure. A spacer may be provided with the duid carrier and may be a split ring arranged to extend; between the head and the inner end ofthe cell WhereY it" normallyv holds these elements separated; If desired fluid can be sealed*v or. encased in. a thin-Walledv envelope designed to t into'and:substantially ll the cell.

A second-1 or any number of additional mate- The fluid charge is carried in thei celland maybe completely sealed therein so that rials or iiuids may be carried in fracturable containers within the cell, or within the envelope provided in the cell.

The various objects and features of my invention will be fully understood from the following detailed description of typical preferred forms and applications of my invention, throughout which description reference is made to the accompanying drawings, in which:

Fig. 1 is a side elevation of a typical form of the invention with a portion thereof broken away to appear in section, the device being shown in loaded condition and in a form suitable for storage and transportation. Fig. 2 is a view similar to Fig. 1 with the spacer shown in Fig. 1 removed and the device operated to establish the applicator in communication with the fluid supply. Fig. 3 is a view similar to Fig. 2 showing the cap removed and leaving the device ready for operation. Fig. 4 is an enlarged longitudinal detailed sectional view of a portion of the structure as it is shown in Fig. l of the drawings. Fig. 5 is a view showing the device in the course of being used. Fig. 6 is an enlarged detailed transverse sectional view taken as indicated by line 6-6 on Fig. l. Fig. 7 is an enlarged detailed transverse sectional view taken as indicated by line 1-'I on Fig. 1. Fig. 8 is a View similar to Fig. 1 illustrating another embodiment of the invention. Fig. 9 is a view similar to Fig. 2 showing the structure illustrated in Fig. 8. Fig. 10 is a view similar to Fig. 3, showing the structure illustrated in Figs. 8 and 9. Fig. 11 is an enlarged longitudinal detailed sectional view of a portion of the structure shown in Fig. 5. Fig. 12 is a view of a portion of the structure shown in Fig. 11 in a position such as is illustrated in Fig. 9, Fig. 13 is an enlarged detailed transverse sectional view taken as indicated by line I 3-I 3 on Fig. 8, and Fig. 14 is an enlarged detailed transverse sectional view taken as indicated by line Ill-I4 on Fig. 8.

Referring rst to the form of the invention shown on sheet 1 of the drawings, the structure involves, generally, two principal elements, namely, an applicator A and a fluid carrier B. In addition to these principal elements the structure may include a spacer C and one or more secondary or supplemental fiuid or material carriers D.

The applicatorin its preferred form is a rigid or substantially rigid unit, and it is illustrated as being in a form that can be advantageously1 formed of a suitable metal, or alloy of metals. The particular applicator shown in the drawings involves, essentially, a straight, elongate, tubu lar part, uniform in size throughout its length and having a forward portion in the form of a needle In and a rear portion in the form of a shank I I. The forward terminal end of the needle I 0 is beveled or cut at an angle to provide the needle with a sharp point I2, and in like manner the rear or terminal end of the shank II is fashioned or formed so that it has a sharp point E3. In the preferred form of the invention an anchoring device Il! in the form of an enlargement or projection on the tubular part above described is provided to occur where the needle and shank portions join.

The fluid carrier B involves, essentially, a collapsible cell 20, and in its preferred form it further involves a head 2I spaced forward of the cell, a collapsible neck 22 connecting the cell and head, and a cap 24 covering the needle IG and joined to the head by a break joint.

lli

The cell 20 in the form illustrated on sheet l of the drawings involves an elongate tubular body 30 having opposite wall portions pinched together at the rear end of the cell to be sealed or joined together at 3|, and thereby close or seal the rear end of the cell. In practice the rear end of the cell can be closed or sealed in any suitable manner, for instance, if a thermoplastic is employed in the formation of the cell it can be permanently and tightly sealed by the application of heat, or by the application of heat and pressure. If other materials are employed it may be desirable to employ other types of joints or seals to gain the desired closure at the rear end of the cell.

The cell includes a front end wall 32 which is preferably a disc-shaped part of substantial thickness so that it has some body or rigidity, and in the preferred form of the invention a boss 33 is formed centrally of the end 32 and projects inwardly therefrom to extend somewhat into the body 3D of the cell. The shank I I of the applicator enters the end wall 32 from its outer side 3A and extends a substantial distance into or through the wall 32 and the boss 33 so that its pointed end I3 normally terminates within the wall or the boss thereof just short of the inner side or face of the boss. Through this relationship of parts the pointed end of the shank is normally completely embedded in or encased by the inner wall of the cell, or the boss which is a part thereof, as will be seen in Fig. 4 of the drawings.

The head 2| is preferably in the nature of an enlargement on the applicator A at about the point where the needle and shank come together, and it is preferably a body of material such as is employed in the formation of the cell 20of suilicient size and thickness so that it has substantial body or rigidity. In the Case illustrated it is a disc-like part formed on or around the applicator A where the anchoring element or projection I4 occurs. The head is spaced a substam tial distance forward of the end wall 32 of the cell.

The collapsible neck 22 joins the cell and the head, for instance, it extends between the end Wall 32 of the cell andthe side of the head that faces the cell, and it is preferably a thin-walled tubular part surrounding the shank as the shank extends from the head to the cell so that it is collapsible or easily deformed. In the particular case under consideration the neck is small or of limited diameter and is such as t0 fit closely around the shank as it extends from the head to the cell.

The cap 24 forms a case or closure for the needle I0 and has avclosed outer or forward end 40 while its inner end is joined to the head 2! by a thin or weak coupling part 4I that forms a break joint between the cap and the head. The cap 24 is such that it fits snugly and completely around the needle Ill and when it is removed as by breaking the coupling 4I it leaves the needle completely exposed and ready for use.

In accordance with the present invention the several parts of the element B that I have termed a iiuid carrier are integrally joined, that is, the body and wall 32 of the cell 20 are integral, the neck 22 integrally joins or connects the cell and the head, and the coupling `4I integrally connects the head and the cap. It will be apparent from the drawings that the several parts of element B, formed and related as I have provided, are suchV that they can be easily and practically 5 molded orotherwise-4 suitably formed from a suitableV so-called-l plastic such` as polyethylene or modications thereof such as fluorinated polyethylene or chlorinated' polyethylene, or I may use various polyvinyl compounds, either acetates,y

alcohols or chlorides, etc. The particular material' or composition used in any particular case may be selectedin accordance with the conditions to be met. The materials inentioned'are thermoplastics and are essentially inert at the temperaturesrequired for the class of use I have indicated. Further, they are capable of being worked or formed by extrusion, injection or compression molding or by deposition on forms from dispersionsknown as1plastisols or from solutions in some instances. Furthermore, it is practical to employfa material which can be molded" hot so that the formation of' the element' B on or in connection withthe` applicator A serves to sterilize the element A and may, in practice, supple--A ment initial sterilization of' element A which may be resorted to.` as circumstances require;

Itis to beunderstood, of course that although Ireferto a material-such as polyethylene or polyvinyl as the material out of which to form element B I do not wish to imply thereby in any. Way that the invention is limited to the use of this or any other particular material, and when I use thel term plastic Imean to include within such term any and all other materials or combinations of materials that may serve 'to carry out the inventive concept herein set forth.

The spacer Cv employed in the form of the invention being described is .a simple split ring or band of any suitable material having reasonable strength and rigidity, for instance, it may be a light metal band or a heavyv liber or paper band. The spacer is engaged around the element B' to engage and extend between the cell 2c and the head 2l; In the case illustrated the spacer is engaged or wrapped around the elementv B and has itsendlportions` seated in recesses 43 provided in the head and end 32y so that the spacer abuts opposing shoulders 49.

In the particular case illustrated the spacer is provided with a handle or tab` 50 where it is split, the tab serving as a means to facilitate ready removal of the spacer' from the element B when it'is desired to preparethe device-for use. When the spaceru is in place, as shown lin Figs. l and 4 of the drawings, it holds the head 2| spaced from the end 32 of the cell where the pointedend of the needle is embedded in the boss 33 of the end 32.

When the spacer has been removed the head 2i and the cell 2i] can be moved relative to each other so: that the headt approaches the end-32v causing the pointed end' of theshanlr lli to ad"- vance through the end 32 or-boss 33 and finallytion be provided with a core D thatV occupiesy the opening provided in the applicator A until.`

Inltheform of the. invention illustrated the core` D is-V a simple .rod ,orvv wireslidably engagedlin then-tilburlar element formingthe: needleandishank, and-it:

such time as the device is readyfor use,

preferably extends.: completely.` through such element, that is, from the pointedend of the needle" l0 to the pointed end of the shank ll.

In accordance with the invention the core D' is nxed or anchoredto the closedend l0 of the cap 24 as at 55, so that when the cap is removed by fracturing the break coupling lll the core is removed from the interior of the applicator at the Sametime that thev cap is removed from the exterior thereof. By providing the core-within the applicator and by placing it therein prior to the element By being molded or formed on or in connection with the applicator, all danger of material entering the applicator is eliminated f vided, as where it is preferred that two materialsy or fluids be provided in the device ready to be mixed either immediately before, during, or after use of the device. In the case illustrated I havev shown a secondary or supplemental fluid container EG carried by the cell 2li, and the container 6B is in the form of a thin-walled or fracturable element filled with suitable material and located within the cell 2G. In the case illustrated the fraeturable container 6G is anchored in the cell 2G at the rear end thereof where a portion 5I of the container 66 is held between the sealed or joined rear end of the cell body 30. With such an arrangement and relationship, initial application of pressure to the cell at the rear end thereof, as indicated by the arrows X, will break the container 6l] and liberate the contents thereof so that they mix or comingle with the contents of the cell body 3d. It will be apparent, however, that by suitable handling of the device the secondary container Bil, whenemployed, can be fractured at any desired time, as circumstances require.

In the form of the invention shown on sheet 2 of the drawings, the various essential parts of the structure hereinabove described may be the same as I have described, except that in this form of the invention the material handled by the cell 2B, instead of being filled or carried directly in the cell, is carried in a container or envelope 'l0 whichlts into or is contained within the cell,

and, furthermore, the spacer C in this form ofV the invention is somewhat different than that above described and the element B has a second neck portion i?a which is of substantial diameter and which occurs immediately within the spacer.

The envelope l@ provided within the cell 2li may be,v considered, broadly, a part. of or a lining within. the cell, although it is preferred that it be initially formed' entirely separate and inde-v pendent ofthe cell 223. In practice the envelope 'lll may be loaded or filled with any suitable material and after it is inserted or filled into the body of the cell 28 the cell can be closed by sealing it at 3 I, thus conning the envelope 'm within the cell, as shown in the drawings. In this case if a secondary supply or secondary container 6D is required it can be applied to or incorporated in the envelope lli, as clearly shown in Fig. 8 of the drawings where it is shown anchored in the cell 2l) at the end of the cell that occurs in the rearend of the cell body 38. In this case the structure operates substantially the sameas that iirst described, except that as the shank of the applicator enters thev cell it does not open into the interior of the cell directly, but opens intothe interior of the envelope 1D which is located in the cell.

The large neck portion 22a, shown best in Fig. 1l of the drawings, may be employed in place of or in addition to the neck 22. In practice the neck portion 22a may be of such wall thickness and size as to normally serve as an effective spacer between the head 2| and the cell 20, making it unnecessary to employ a separate or independent element in the form of a spacer to normally keep these parts separated. In the drawings, however, I have illustrated a spacer C similar to the spacer hereinabove described, being in the form of a split ring or band wrapped around the element B to occur between the head and the cell and thus reinforce or stifen the structure where the neck 22a occurs. A vent opening 23a is applied in the neck 22a so that the air conned in the chamber Y, defined by the neck 22a, end wall 32 and head 2 l, may be bled out when the structure is actuated. It is to be observed that in practice the spacers employed in the construction can be used to bear markings or identications so that they are, in effect, labels, and also seal the vent opening 23a.

From the foregoing description it will be apparent that I have provided a construction which lends itself to simple, inexpensive manufacture which can be carried out so that the resulting device is sterile and loaded with a suitable material so that there is a suitable quantity of such materia-l, and so that such material is completely sealed and contained within the device against all danger of contamination. Ordinarily in the course of manufacture the applicator A will be initially sterilized with the core D inserted therein, and then the element B will be cast or formed around the applicator, the initial formation of element B being' such as to leave the rear end portion thereof open.

When the desired charge of material or mate-i rials has been applied, as by filling into the body 3E or by insertion of an envelope 10 into the body 3B, the body is sealed or closed as at 3|, and at any suitable point in the operation the spacer is applied so that the shank of the applicator is maintained in a position where it does not enter the interior of the cell or the envelope within the cell.

When it is desired to use the device the spacer, if employed, is removed, tension is applied to the cap 24'; sufficient to break the coupling 4| thus separating the cap and head, freeing the cap so that it can be withdrawn from the needle, which operation withdraws the core from the applicator. The device is now ready for use and by mere pressure or collapsing of the cell 20 the materials in or carried thereby can be effectively discharged through or by means of the applicator, or so as to be delivered by the needle. It is to be understood that the needle can be applied or manipulated in any suitable manner and in accordance with established practice, or to apply or administer the contents of the device in the desired manner. The structure that I have provided is of such simple, inexpensive construction that once' emptied. by operation as above described, it can be disposed of without appreciable loss.

When either of the devices is to be used to receive or take samples or bodies of fluid, the cell is collapsed and the needle applied following which the fluid will fill into the cell `to be thereafter handled as desired. l

Having described only typical preferred forms and applications of my invention, I do not wish to be limited or restricted to the specific details herein set forth, but wish to reserve to myself any variations or modifications that mat7 appear to those skilled in the art and fall within the scope of the following claims:

Having described my invention, I claim:

1. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable 'relative to the carrier to enter the shank into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell.

2. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardlyA projecting shank portion each with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell, and a collapsible neck connecting the cell and said head.

3. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, and a core engaged in said part and removable therefrom to free said part for passagev of fluid from the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell.

4. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a uid carrier with a closed collapsible liuid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, and a core engaged in said part and removable therefrom to free said part for passage of fluid from the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell, and a collapsible neck connecting the cell and said head.

5. In a device of the character described, a core, and two units, one unit being a substantially rigid applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other unit being a single continuous body of material with a portion defining a fluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, another portion of @the :body of 'material `.a .cap .engaged over the needle portion and removable therefrom, upon Abeing-separated from the firstmentioned portion of Vsaid bodyof material, the core being sli-:labiy `engaged in said part and connected .with .the cap lfor removal from said part when .the cap iisrevmoved `from the needle portion.

6. In a device of the character described, .a

zcore, and two units, one of the units being an applicator having an elongate rigid tubular part witha forwardly projecting needle portionand ka rearwardly projecting shank portion each with .a pointed terminal end, and the otherof said units being a single continuous body of flexible .material establishing a plurality or". integrally joined portionsone defining a fluid carrier with -a closed collapsible uid carrying cell with `the yprojecting from the cap and occupying andslidable in the opening in said part, the said body of material having a part Vforming a break joint joiningthe cap and fluid carrier.

7. In a device ofthe character described, two

units, .one an applicator having an elongate tubun lar part with a forwardly projecting needle portion and a rearwardly projecting shank portion eachwvith a pointed terminal end, and the other a vfluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank. into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell, and a spacer detachable from the carrier and normally holding the head against movement toward the cell. 1

8. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a fluid carrier wtih a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell, and a detachable sleeve engaged around the carrier and with the cell and head to hold the head away from the cell.

9. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a uid carrier with a closed collapsible fluid carrying cell with the shank partially entered. through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the shank to enter the cell, and a collapsible neck engaged with said part and connecting the cell and head.

10. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion Vcarrier toward the cell.

`each .witha pointed terminal end, and the other 'a .fluid carrier with a closed collapsible fluid .carrying cell with the shank partially entered through ya .wall thereof, the .applicator being Vshiftable relative to the carrier to enter the :shank 'into the cell, Ythe carrier having a head shiftablerrelative to thecelland engaged with -said part .to facilitate shifting kof `the shank to enter the cell, and-a deformable neck .extending Ibetween the headand cell and normally holding the head away` from the cell.

l1. In a device of the character described, two

vunits,.one an applicator having an elongate tubular part with a forwardlyprojecting needle portion and a rearwardly projecting shank portion Veach with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying'cell lwith vthe shank partially entered `through a wall thereof, the applicator being shiftable relative to-thecarrier to enter the shank into the cell, thecarrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting of the -shank to enter the cell, and a removable spacer engaged around the holding the head against movement Vl2. In a device of the character described, two units, Vone an appiicator having anelongate tubular part with a forwardlyV projecting needle portion and a rearwardly projecting shank portion each'with a pointed terminal end, andthe rother azi-luid carrier with azclosed collapsiblefluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to ,enter theshank into-the cell, ahead onsaid part ,and'spaced from the cell, a collapsible neck connecting the head and cell and a cap releasably connected to the head and engaged over the needle portion, the cell, head, neck and cap being an integral body of material.

13. In a device of the character described, two units, one unit being an applicator having an elongate rigid tubular part with a forwardly pro-- jecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other unit being a fluid carrier with a iclosed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable bodily relative to the carrier to enter the shank into the cell to be in direct communication therewith, a head rigid on said tubular part and spaced from the said wall of the cell, a collapsible neck connecting the head and cell and a cap releasably connected to the head and engaged over the needle portion, the cell, head, neck and cap being a continuous integral body of material, and a core occupying the opening in said tubular part and connected to the cap for withdrawal from said tubular part when the cap is removed from the needle portion.

14. In a device of the character described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a uid carrier with a `closed collapsible iiuid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, a head on said part and spaced from the cell, a collapsible neck connecting the head and cell and a cap releasably connected to the head and engaged over the needle portion, the cell,

1 1 head, neck and cap being an integral body of material, and a releasable spacer engaged with the ycarrier holding the head away from the cell.

15. In a device of the character described, two units, one an applicator having an elongate rigid tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying cell having the shank partially entered through a wall thereof, the applicator being shiftable bodily relative to said wall to enter the shank into the cell, a head in fixed position on said tubular part and spaced from said Wall of the cell, a collapsible neck connecting the head and cell and a cap releasably connected to the head and engaged over the needle portion, the cell, head, neck and cap being an integral body of material, a substantially rigid spacer releasably engaged around the carrier holding the head away from the cell, and a core occupying the opening in said part and xed to the cap for withdrawal from said part when the cap is removed from the needle portion.

16. In a device of the Icharacter described, two units, one an applicator having an elongate tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a fluid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a Wall thereof, the applicator being shiftable relative to the carrier to enter the shank into the cell, the carrier having a head shiftable relative to the cell and engaged with said part to facilitate shifting,r of the shank to enter the cell, and a plurality of concentric collapsible necks connecting the cell and said head.

17. In a device of the character described, two units, one an applicator having an elongate rigid tubular part with a forwardly projecting needle portion and a rearwardly projecting shank portion each with a pointed terminal end, and the other a body of flexible material defining a uid carrier with a closed collapsible fluid carrying cell with the shank partially entered through a wall thereof, the applicator being shiftable bodily relative to said Wall to enter the shank into the cell, the cell having a material carrying container therein, the container being formed of friable material and being adapted to be fractured for discharge of the material in the container upon a user flexing the cell and thereby applying pressure to the container.

References Cited in the file 0f this patent UNITED STATES PATENTS Number Name Date 1,021,146 Greeley Mar. 26, 1912 1,336,730 Court Apr. 13, 1920 1,522,198 Marcy Jan. 6, 1925 1,572,324 Smith Feb. 9, 1926 1,668,588 Greeley May 8, 1928 2,371,086 Watson et al Mar. 6, 1945 2,514,575 Hein July 11, 1950 FOREIGN PATENTS Number Country Date 504,291 France Apr. 10, 1920 587,280 Great Britain Apr. 21, 1947 950,588 France Mar. 28, 1949 

